Antarctic sea-ice expansion

ngeo1767-f4Changes in sea ice significantly modulate climate change because of its high reflective and strong insulating nature. In contrast to Arctic sea ice, sea ice surrounding Antarctica has expanded1, with record extent2 in 2010. This ice expansion has previously been attributed to dynamical atmospheric changes that induce atmospheric cooling3. Here we show that accelerated basal melting of Antarctic ice shelves is likely to have contributed significantly to sea-ice expansion … please click on the image to read more about the article.

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Oceans continue to warm

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When discussing global warming, the public eye is mostly directed to global average surface air temperatures, but that’s just one slice of the climate pie. If you haven’t noticed, the ocean is awfully big, and it holds a great deal more heat energy than the atmosphere. In fact, about 90 percent of the energy that’s been added to the climate system by human activities has gone into the ocean.

Unfortunately, it’s hard to monitor that. There are a multitude of measuring stations for surface air temperatures, but our presence in the ocean is limited. With the advent of the Argo array—a fleet of autonomous, drifting floats that measure ocean temperatures—in the early 2000s, our data improved drastically. Still, the uncertainty has historically been greater for deeper waters.

In 2010, … click on the image to read full article

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Titanic 2

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Declaring it will be the safest cruise ship in the world and will have more than enough lifeboats just in case something goes wrong, the designer of what’s supposed to be a replica of the Titanic has unveiled images of what the Titanic II will look like, inside and out.

It was almost a year ago, some Two-Way readers will recall, when we passed along words that Australian billionaire Clive Palmer had contracted with a Chinese shipbuilder to build such a ship.

“There will be capacity for 2,435 passengers and 900 crew. There will also be lifeboats that can carry 2,700 and a life rafts with an additional capacity of 800. The original Titanic had just 16 wooden lifeboats that accommodated 1,178 people, one third of the total capacity. Some 1,502 people died when it sank on April 15 1912.”

“Just like in 1912 there will be three classes of passenger and those with different tickets will not be able to move between the classes, though there will be more toilets for the lower decks than the original. Everyone on board will however be provided with early-20th-century-style clothes and undergarments in their cabins to get them in the mood. Whilst there will be air conditioning there will be no TVs and no Internet in a bid to get back to the ‘romance’ of a bygone age.”

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Une véritable artillerie à disposition de la pêche

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Il existe de nombreuses techniques de pêche variant en fonction des espèces ciblées. Chaluts, palangres, ou encore « senne », présentons succinctement trois techniques. Les pêcheries  actuelles apparaissent alors comme une véritable industrie en guerre contre les océans.

Cliquer sur la photo pour lire l’article en entier et surtout visionner la vidéo, merci

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100 million sharks killed each year

CITES in Bangkok : Shark fin protest : hundreds of juvenile sharksBangkok meet CITES since yesterday to protect sharks or they face possible extinction in a generation.

According to scientists, almost 100 million sharks are being killed each year, with fishing rates outstripping the ability of populations to recover.

Please click on the pictures to learn more about this threat.

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Plastic-Filled Albatrosses

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The birds, which normally feed on squid and other animals that swim near the surface of the water at night, have instead been accidentally swallowing pieces of floating plastic that now litter the world’s oceans. The birds then return to the island, regurgitate the plastic and feed it to their young.

For three years, Seattle photographer Chris Jordan and a small crew of cinematographers have been filming the albatross living and breeding on the island for an upcoming documentary called Midway. Jordan says the albatross has been around for millions of years and for the majority of that time they didn’t have to distinguish what they could and could not ingest.

Click on the picture to link this interesting review and do not forget to watch the video

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Coral crab: Friend or foe?

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The furry coral crab – or cymo melanodactylus crab for those of you who prefer proper biological names – was suspected of causing a deadly coral disease called white syndrome. The syndrome spreads fast and devastates the coral population.

But thanks to research by a team that includes Joe Pollock, a 2002 graduate of George Washington High School who now is a PhD student and Fulbright scholar at Australia’s James Cook University, we now know that little crab is actually helping the coral reefs plagued by white syndrome.

Please click on the picture to know more about this review

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Underwater robots to ‘repair’ Scotland’s coral reefs

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Underwater robots tasked with saving coral reefs are being developed at Heriot-Watt University in Scotland.

Dubbed “coralbots”, they are being designed to work in groups, in a similar manner to bees and ants.

The team is still “training” the software that will control the bots to “recognise” corals and distinguish them from other sea objects.

Click on the picture to know more about this exciting project !!

 

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Coral reefs: The ocean’s larder

p01594fzFound throughout the shallow waters of the tropics, reefs help to sustain marine life and millions of the world’s poorest people.

Coral reefs are amongst the most productive areas of the ocean. Each coral contains microscopic algae within its tissue that are able to capture the energy of the Sun and convert it into food. The corals benefit from this, and this helps support a whole community of life. There’s a tight recycling of nutrients through the food web, every species being food for another, all interconnected like a jigsaw puzzle.

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How can we save our dying coral reefs?

p00y6yq5As the first of the world’s ecosystems faces extermination at our hands, Gaia Vince looks at efforts to protect our underwater gardens worldwide.

I was the neoprene queen – Jacques Cousteau had nothing on me. Suckered into a tight black wetsuit, weight-belt on, the air-tank octopus grazing the back of my head, and my knees buckling under the burden of it all, I waited. Perspiration streamed down my face and prickled the back of my neck as I swayed heavily in the sweltering sun, eager to make my ungainly splash into the cool Coral Sea, off the north-east coast of Australia.

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